1122111212202 has 48 divisors (see below), whose sum is σ = 2546250269472. Its totient is φ = 370333717200.

The previous prime is 1122111212137. The next prime is 1122111212203. The reversal of 1122111212202 is 2022121112211.

1122111212202 is a `hidden beast` number, since 112 + 211 + 121 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1122111212203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11380968 + ... + 11479139.

It is an arithmetic number, because the mean of its divisors is an integer number (53046880614).

Almost surely, 2^{1122111212202} is an apocalyptic number.

1122111212202 is an abundant number, since it is smaller than the sum of its proper divisors (1424139057270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122111212202 is a wasteful number, since it uses less digits than its factorization.

1122111212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22860225 (or 22860213 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1122111212202 its reverse (2022121112211), we get a palindrome (3144232324413).

Subtracting 1122111212202 from its reverse (2022121112211), we obtain a palindrome (900009900009).

The spelling of 1122111212202 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, two hundred twelve thousand, two hundred two".